Reproduction is a characteristic feature of all living organisms. They start from a seed, grow, and then produce seeds of their own. No non-living object is capable of reproduction or replication by itself. Living things reproduce, but there are many organisms, which never reproduce in their life, although all other characteristic of living things are present in them, e.g., sterile worker bees, mules, infertile human couples, etc. Hence, reproduction cannot be an all-inclusive defining property of living things.